SC - Brachial Plexus

Question 1

Dorsal scapular n.

Answer 1

C5

• Rhomboids major and minor
• Levator scapulae

Question 2

Long thoracic n.

Answer 2

C5-C7

• Serratus anterior

Question 3

Subclavius n.

Answer 3

C5-C6

• Subclavius

Question 4

Suprascapular n.

Answer 4

C4-C6

• Supraspinatus
• Infraspinatus
• Articular filaments to shoulder and AC joints

Question 5

Lateral pectoral n.

Answer 5

C5-C7

• Pectoralis major

Question 6

Medial pectoral n.

Answer 6

C8, T1

• Pectoralis minor

Question 7

Upper and lower subscapular n.

Answer 7

C4-C7

• Teres major
• Subscapular

Question 8

Thoracodorsal n.

Answer 8

C6-C8

• Latissimus dorsi

Question 9

Axillary n.

Answer 9

C5, C6

• Teres minor
• Deltoid

Question 10

Musculocutaneous n.

Answer 10

C5-C7

• Brachialis
• Biceps brachii
• Coracobrachialis

Question 11

Median n.

Answer 11

(C5), C6-T1

• Flexor muscles in the forearm
• Thenar muscles
• 1st and 2nd lumbricals – associated with 2nd and 3rd digit

Question 12

Radial n.

Answer 12

C5-T1

• Triceps brachii
• Posterior compartment of the forearm (mainly Ext of wrist and fingers)

Question 13

Ulnar n.

Answer 13

C8, T1

• Muscle of the hand (apart from the thenar muscles and 2 lateral lumbricals)
• Flexor carpi ulnaris and medial half of flexor digitorum profondus